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From: siegel@sun.com (Josh Siegel)
Newsgroups: comp.windows.news
Subject: Re: garbage collection mysteries
Message-ID: <SIEGEL.91May10134947@booga.sun.com>
Date: 10 May 91 20:49:46 GMT
References: <1991May9.161618.13057@canon.co.uk>
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In-reply-to: smith@canon.co.uk's message of 9 May 91 16:16:18 GMT
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> In article <1991May9.161618.13057@canon.co.uk> smith@canon.co.uk (Mark Smith) writes:
> 
> [...]
> 
> Does anyone else have trouble reconciling the description of
> garbage collection in NeWS/TNT with reality?  From the TNT manual
> (I'm using TNT 2.0 beta), ClassCanvas, pages 69/70:
> 
> [...]
> 

Destroy is only called when there are soft references to the object.

       --josh
==

/ClassFoo ClassObject [/me]
classbegin
    /NewInit {
	console (I am alive!\n) fprintf
	/NewInit super send
    } def

    /set_self {
	/me self soften def
    } def

    /destroy {
	console (I am dead!\n) fprintf
	/me unpromote
	/destroy super send
    } def
classend def

/new ClassFoo send
dup /set_self exch send
pop